<span>(B) One population of lizards leads to 15 separate species over a short time
Adaptive radiation is a single species diversifying into more to suit its environment(s) </span><span />
True, though the Hadean period is one exception.
Answer: fewer areas have fertile soil reducing crop production
Explanation:
I j got it right
Please rephrase the question, it doesn't make sense.
<u>Answer:</u>
Recent evidence suggest that feathers evolved from scales and suggest that 'feathers and pycnofibers' could be homologous.
<u>Explanation:</u>
- One of the major difficult issue related to bird evolution is the evolution of feathers.
- Feathers are considered as the most 'complex integumentary structures' which are found in vertebrates.
- Evolutionary developmental biology suggests that the 'planar scale structure' is been modified for developing into feathers by 'splitting' to form web like structures.
- Scales and Feathers consist of 'two distinct form of keratin' so it was thought that 'each type was exclusive skin structure' but recent study suggests that they are developmental expressions of same skin structures.
